Sand-separating apparatus.



No.v 688,493. Patented nee. lo, ram.

' (2. H. STEBBINS.

SAND SEPARATING APPARATUS. (A'ppumion med Aug.- 310. 1901.) (no Model.)

UNITED STATES PATENT OFFICE.

CHARLES H. STEBBINS, OF CHICAGO, ILLINOIS;

SAN D-'sEPARATlNG APPARATUS.

SPECIFICATION forming leere of Lettere Patent No. 688,493, datedDecember 1o, 1901. Application filed August 30, 1901. Serial No.'I3,775. (No model.)

T0 all whom it may concern/.-

Be it known that I, CHARLES H. STEBBINS, a citizen of the UnitedStates,residing at Chicago, in the county'of Cook and State of Illinois,have invented a new and useful Im provement in Sand-SeparatingApparatus, of which the following is a specification.

My invention relates particularlyto apparatus for cleaning sand andseparating the same from its impurities, the latter being carried offwith the wash-water.

My primary object is to provide simple and inexpensive apparatus of thischaracter which is compact in form and well adapted to its purpose.

My invention is illustrated in its preferred form in the accompanyingdrawings, in which- Figure 1 is a view in side elevation of my improvedsand washing and separating apparatus; and Fig. 2, a sectional viewparallel to one side, illustrating the Vposition of the sand-collectingbox during the dumping operation.

A represents a stationary frame having side rails A', equipped withbearings A2; A2, a water-discharge spout carried by said frame;

A4, a sand-discharge spout carried by saidl frame; B, a combinedsand-collecting andballast box, provided on the exterior surfaces of itssides with bearings B', coacting with the bearings A2, said box beingdivided by an inclined wall a. into a sand-collecting chamber a and aballast-chamber a2; B2, a sand-discharge spout for the chamber a; B2, awater-discharge spout for the chamber a', whereat the impurities alsoare discharged; B4, a stop limiting the downward tilt of the boxB, and Ca supply-spout through which water and sand are delivered to the chambera.

The frame A is provided with a stop b, provided with a facing h', ofrubber or other yielding material, affording a valve. As shown in Fig.1, when the box B -is in the upright position the end of thesand-discharge spout B2 bears against the yielding piece b', and saiddischarge is effectually sealed. The piece o preferably lies insubstantially a ver- 5o tical plane, and the end of the spout B2conforms thereto.

The operation is as follows-z rl`he required amount of ballast isintroduced into the cha1nber a2 through any suitable opening, (notshown,) and the ballast operates to hold the box B in the position shownin Fig. l, with the end of the spout B2 bearing firmly against the valveb'. Sand and water enter the box from the chute C, and the sand collectsin the bottom of the chamber a', while the water and relatively lightimpurities overiow at the spout B2. When sufficient sand collects in thechamber a to overbalance the ballast in the chamber a2, the box tilts,moving the spout`B2 away from the valve b and permitting the sand todischarge into the spout A4. Practically the ballast may be so adjustedas to cause the sand to reach a level nearly 'even with the spout B2before the box is tilted. The sand is quickly discharged, and the weightof the ballast again predominates and rights the box, after which theoperation is repeated.

It will be observed that the front wall of the chamber a is vertical,while the rear wall is inclined, so that the sand is in effect confinedwithin a hopper when the box is in the position shown in Fig. 2.Preferably the box is of rectangular form, being simply divided by theinclined partition a. Changes in form and in minor details may be made,however, without departure from my invention.

What I claim as new, and desire to secure by Letters Patent, is-

1. In apparatus of the character described, the combination of asuitable frame, a tiltablymounted suitably-ballas'ted sand-collectingchamber supported thereon, said chamber being provided at its lowerportion with a sand-discharge and atits upper portion with awater-discharge, and a xed valve located exterior to said chamber andengaged by the sand-discharge orifice when the device is in the uprightposition, substantially as described.

2. In apparatus of the character described, the combination with twoside frames provided with bearings, of a box provided on the exteriorsurfaces of its sides with coacting bearings, said -box having apartition dividing it into a ballast-chamber and a sand-collectingchamber, said last-named chamber being provided at its lower portionwith a sand-discharge and at its upper portion with a water- IOOdischarge, and a valve located exterior to said sand-collecting chamberand adapted to be engaged by said sand-discharge when the box is in itsupright position, substantially as described.

3. In apparatus of the character described, the combination of a frameprovided with a sand-discharge spout and a Water-discharge spout andadjacent to said sand-discharge spout with a valve, and a tilting boxmounted in said frame and provided with a ballastchamber and asand-collecting chamber, said last-named chamber being provided with asanddischarge spout bearing against said valve and located above saidfirst-named sanddischarge spout, and provided also with awater-discharge spout located above said irstnamed water-dischargespout.

4. In apparatus of the character described, the combination with a frameprovided with a Water-discharge spout, with a sand-discharge spout, andabove said sand-discharge spout with a valve, of a tilting vessel havinga sand-collecting chamber provided with a sand-discharge spout locatedabove said rstnamed sand discharge spout and bearing against said valve,and provided, also, with a Water-discharge spout located above saidfirst-named water-discharge spout, ballast for holding said tiltingvessel normally in an upright position, and a stop serving to limit thetilting movement of said vessel.

V CHARLES H. STEBBINS.

ALBERT D. BACCI, WM. B. DAVIES.

